Correct

奇案

/ jī àn / 
Strokes

Example

As a Noun

quirky case

1
Zhēnpò
侦破
jīàn
奇案

solve a quirky case

2
Yī
一
zhuāng
桩
qiāngǔ
千古
jīàn
奇案

a never solved strange case